High-entropy La(Fe0.2Co0.2Ni0.2Cr0.2Mn0.2)O3 ceramic exhibiting high emissivity and low thermal conductivity |
| |
| Authors: | Qu Wang Qi Zhang Gang Wang Yifan Zhang Miao Xia |
| |
| Affiliation: | State Key Laboratory of Advanced Refractories, Sinosteel Luoyang Institute of Refractories Research Co., Ltd, Luoyang, China |
| |
| Abstract: | A novel, high-entropy, perovskite-structured, solid solution La(Fe0.2Co0.2Ni0.2Cr0.2Mn0.2)O3 ceramic was successfully synthesized via high-temperature solid-state reaction. The crystal structure, microstructure, infrared emissivity, and thermophysical properties were investigated. The experimental results indicated that La(Fe0.2Co0.2Ni0.2Cr0.2Mn0.2)O3 exhibited an infrared emissivity as high as .92 in the near-infrared region of .76–2.50 μm. The thermal conductivity was 1.38–1.72 W m?1 K?1 in the temperature range of 25–1200°C. |
| |
| Keywords: | ceramics emissivity high-entropy La(Fe0 2Co0 2Ni0 2Cr0 2Mn0 2)O3 thermal properties |
|
|
